I changed the map sensor and disconnected the battery to reset the check engine light now the car wont start what do i do now

You can try resetting the main computer by just disconnecting the battery and let it sit for 10 minutes with no battery, connect the battery back and that should reset all sensor lights. If that doesn't work check all sensor connections, that power wash could of disconnected the Map sensor or other cirtical connections attached to other sensors in the engine compartment.
Worse case scenario is that the bay wash could of pushed or flushed some debris into that Map sensor housing and is now clogged up, a simple cleaning with a special spary cleaner for Map sensors could make the check engine light turn off.

Try disconnecting negative battery cable for a few minutes then reconnect. This will reset computer. Worked on my wife's car. It would start and shut off 2 seconds later for no apparent reason. Do you have a check engine light on? Could also be caused by a bad maf/map sensor or tps sensor

Check that the hose for the MAP sensor is not disconnected or blocked. Then check that the vacuum port for the hose is clear on the engine side. After that, start looking at a shorted wire.

what does the scan tool show.??
? still P0106, and did you reset it?
did you try to start car with MAP disconnected, some do start in limphome mode. rich a a pig but starts.
did you have key off when you fiddled the MAP connector,
or better pull the battery neg, lug first?


lost power to the mAP, check the power pin.
lost ground to sensor.
lost vacuum to the sensor (clogged paths)
Bad MAP sensor Water/dirt intrusion affecting MAP sensor connector Intermittent open in the reference, ground, or signal wire for the MAP sensor Intermittent short in the reference, ground, or signal wire for the MAP sensor Ground problem due to corrosion causing intermittent signal problem A break in the flexible air intake duct between the MAF and the intake manifold Bad PCM
(do not assume the PCM is bad until you've exhausted all other possibilities)

Sounds like you found the problem . get a new MAP sensor or take the one you have to the dealer to be tested . Good Luck

you can disconnect the Battery and when the battery is disconnected ..now turn on your head lites ... Wait a min or two then shut off head lites re connect battery ... try starting car this will reset you computer in car ...

Make sure battery has a full charge. Have a helper crank it, while you visually check for spark at the spark plugs. If spark everywhere, use a gage and check proper fuel pressure. Also, check fuel injector pulse.

you can take of the ground of the battery of the car for 30 minutes and the computer will reset. if you drive around without reseting the computer might figure it out after 30 miles.

why would you worry! this is standard procedure! after hooking at back up turn key on then off and on you hear the fuel pump grunt grrr away you go! startr it up enjoy yesterday you confirmed all ways well and thanked me and another person has your situation changed??John

Hey replace that sensor you shouldn't try to run it with out manifold air pressure is vital to eng.wan"t rid off engine light?? disconnect battery while installing your """COMPUTERIZED""" part that way when you reconnect battery just like at home PC when you install up dates you must restart your computer in order for it to recognize any up-dates such as ""MAP SENSOR""" but if you do not replace it and disconnect battery and wait a couple of means it will come rite back on!happy new year,Happy new year,John Ontario Dodge dealership tech! this made my coffee break bright !!